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Show Date: 20 Jul 10
Blossom end rot is the bane of tomato growers. It happens due to calcium deficiency and poor watering practices.
When tomatoes are allowed to wallow in water and then dry out and then wallow and dry out time after time, they most likely WILL develop blossom end rot. Calcium Foliar sprays will help subsequent fruit. If your tomatoes already have blossom end rot, there’s nothing that can help them.
Fact Sheet on Blossom End Rot [Cornell University]
Lighten up on the nitrogen fertilizer. In fact, fertilize BEFORE you plant with a 5-10-10. The first number is N – nitrogen, the second number is P – phosophorus and the third number is K – potassium.




